Gas-valve-controlled ventilating device



Patented Jan. 19,r 1926:.v

UNITED STATES HARRY DYER, F LOS'ANGELES, CALIFORNIA.`

GAS-VALVE-CONTROLLED VENTLATING i DEVICE.

Application mea February 2a, 1925.v serial no. 12,348.

To all whom t may concer/rt:

Be it known that I, HARRYDYER, a citizen of the United States, residing at Los Angeles, in the county of Los Angeles and State of California, have invented new and useful improvements in Gras-Valve-Controlled Ventilating Devices, of which the folios-ing is a specification.

This invention relates to Ventilating dek-v vices, and particularly to a gas valve controlled Ventilating device.

lt is well known that injury to health, and sometimes death, occurs when a gas lheater or gas light is used in an unventi-V Y thc windowiwill be opened when the gas is turned on.

' ther objects and advantages will be made manifest in the -following specification of an embodiment of the invention illustrated in the accompanying drawings, in which:

Figure l is a front vie-w of the gas valve controlled Ventilating device shown in relation to a window and a gas heater, with parts cut away to show the construction.

YFigure 2 is an enlarged fragmentary view partlv in section of the valve controlled .'eutilating device.

'lhe details of construction and operation of the invention are as follows:

."t window 1 having a frame 2 which is adajg'ited to slide in a window casing 3 may seat upon the window seat 4. The lower member of the window frame 2 is recessed as ai 7 to accommodate a plate 6 which is secured firmly to the window frame and has dependingl from it a hollow sleeve 8 having internaiL threads 9. The threads are preferably of a high pitch.

Adapted to operate within the sleeve 8 is a screw shaft 10 having threads of a high pitch adapted to engage the internal threads of the sleeve 8. The screw shaft 10 has keyed to its lower end a beveledfgear l1, the length of the screw shaft 10 being proportioned so that the bevel gear 11 ,willr ,mesh

with a second bevel gear 12 hereinafter described.

Al gas valve 15 is interposed in a gas linel lwhich leads to any type of gas heater 17. Ordinarily the gas line will be disposed within a wall 18, the screw shaft 1() and the hollow sleevek 8 beingV disposed vertically within the wall 18 and the casing 4 having a hole through which the sleeve 8.1nay slide. However, other yarrangements involving the same principles may be employed. y

They valve .V15 comprises any standard form of gas Valve having a T 19 within which is a passageway 20 and a stem 21.-is adapted to screw in and out and to close and open the passage 20. l A handle 22 is secured to the outer end of the stem 21 and a nut 23 is a part of the standard valve 15.

The bevel gear 12 is securely fastened to the stem 21 as by means of a key 13 residing in a keyway formed in the bevel gear 12 and the stem 21.

A collar 24 secured to the stein 21 by a pin 25 is adapted to retain the bevel gear 12 longitudinally of the shaftV and la washer 26 linterposed between the bevel gear 12 and the nut 23 provides a thrust bearing for the bevel gear 12. The bevel gear 12 is limitably slideable longitudinally of the stem 21 to compensate for the longitudinal 'movementof the stem v 21. Where the valve 15 is within the wall 18 the stem 21 Will extend through an opening in a base board 27 so that the handle 22 will be accessible from within the room.

The operation of the invention should now be apparent. Assuming that the window 1 were in a closed position and the valve 15 also closed, which is the normal relation between the valve and the window, the valve is opened to permit the gas heater 17 to be lighted. In order to open the valve 15 the stem 21 must be rotated by means of the handle 22 in a left hand direction. This movement will cause the bevel gear 12 keyed to the stem 21 to rotate, and meshing with the bevel gear 11 will cause the screw shaft 10 to revolve and the screw shaft engaging the threads 9 of the sleeve 8 will cause the sleeve 8 to move to a substantial distance upwardly carrying with it the window 1 into a position substantially as illustrated in Figure 1. If while the valve is open the gas How should be momentarily discontinued and the fire extinguished the ventilation af- ILM forded by the opening of the Window l. will preventinjury to persons in the room. The open window further provides an assurance of ventilation and supply of oxygen to the gas heater when the heater is in use. `When it is desired to turn oit the gas 'liow andthe valve stein 2l is turned in a right hand direction the bevel gear l2 meshingv With the bevel gear 1l will canse the shatt l() engaging With the sleeve 8 to screw in an opposite direction and to lower the Window l into a closed position upon thewindovv seat 4.

The' bevel gear 12 is preferably larger than the bevel gear ll, the ratio between these gears and the pitch oii the threads on the screnT shatt l() combining' to determine the movement oi the Window relative to the turning of the valve stein.

The utility ot the gas valve 'controlled ventilating device will ot course be increased when used in a room having ventilators near the ceiling through which hot air or gas might escape.

Various changes may be made Without departing from the spirit of the invention as claimed.

What is claimed is: l. In combination with a window and a gas supply7 a valve having a rotatable stem adapted to control the gas supply, a gear on said stem, a. screw shaft and a second gear mounted on the shaft adapted to mesh With the vtirst gear, a hollow threaded sleeve on the Window adapted to engage the screw shaft, being' adapted to raise the Window when the valve stein is turned in one direction and to close the Window When the valve stem is turned in the other direction.

2. n combination with a Windonvv having a screw-threaded element and a ,gas supply, a valve having a rotatable stem adapted to control the gas supply a gear on said stem, a screw shaft and a second gear mounted on the screw shaft and adapted to mesh with said lirst gear, said screw' shat't being operatively connected with the said screw threaded element on the )vindmv to onen and close the window when the valve Vstern is turned in one direction or the other.

ln testimony whereof I have signed my naine to this specification` HARRY DYER. 

